PS3 Failing to Boot

I was in the middle of a game when the power supply failed ( stepping down from 240v -> 100v), so as expected the PS3 powered off instantly.

After i replaced the step down transformer and plugs everything back in. The red light will still come on(indicating the power supply inside the PS3 has not fried yet?). But when i try to start it up by pressing the power button and as i could hear the fans firing up, it will put itself back into standby mode in abt 1 secs. and obviosuly failing to eject my game disc inside.

therfore it is failing to start, and it does beep once.. dunno if tat means anything.

I am likely to take it back to sony in japan.. but i m jst wondering if its something tat could be fixed easily..